Country Water and Wastewater Engineering Company:

Keshavarz Blvd., Shahid Baradaran Abdullahzadeh St. (village), No. 8, PO Box 14155-6359, Tehran

Website address of Iran Water and Wastewater Engineering Company: www.nww.ir

Contact number: 021-5-88953321

Fax number: 88953329 (021)

Ministry of Power:

Tehran- Wali Asr Street- Niayesh Highway- in front of the south door of Mellat Park- Ministry of Energy Building- Postal code: 1996832611

Ministry of Energy website address: www.moe.gov.ir

Contact number: 81606000 (021)